<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
    <script>

      const person1 = {name: 'lily', age: 20}
      const person2 = {...person1}
      console.log(person1)
      console.log(person2)

      const m1={name:'jack', age: 21, address: 'beijin'}
      const m2={name:'lily', age: 22, sex: '女'}
      const m3 = {...m1, ...m2}
      console.log(m3)
    </script>
	</body>
</html>
